Pump truck



May 20, 1930. w, H, :QBURN E1; AL 1,759,252

b PUMP TRUCK I Fled Sept. 29. 192'? Inventor /l( 'lur/V, C'. zierzfmw,

Amrhgy y vPatented May 20, 1930 UNITED STATES WILLIAM H. COBURN ANDCHARLES KIERNAN, OF M .'ORGANTOWN, WEST VIRGINIA,

ASSIG-NORS OF ONE-THIRD TO GINIA Y ERNEST H3 GILBERT, 0F MORGANTOWN, WEST VIR- PUMP TRUCK Application filed September 29, 1927. Serial No. 222,920.`

This invention relates to an improved pump truck especially designed and constructed for use in coal mining systems where communicating main and auxiliary headings are provided. f

More specifically, the truck has been built with a view toward adapting it for convenient operation, in asystem of mining known as a concentrated pocket system, forrattacking and ietieating long walls.

The object is to provide a truck which inn cludes self-propelling means, an electric motor driven pump supported thereon, and a cooperating hose reel, arranged so that the hose can be laid as occasion requires, thereby obviating the necessity of laying a pipe line or permitting the water to be discharged at random on the floor of the heading.

The alleged novelty is based upon the convenience of arrangement and association of parts and the design ofthe truck which is such as to adapt it for movement through comparatively low headings.

In the drawings Figure 1 is a top plan View of a pump truck constructed in accordance with the present invention.

Fig. 2 is a side elevation of the same.

In the drawings, the reference numeral 3 designates generally the truck which comprises a somewhat U-shaped frame, the side bars L of which are disposed lin spaced parallelism. The connecting portion 5 is offset upwardly, and is connected with the spindle of a single guide wheel 6. On the upper end of this spindle, is a worm gear 7 with which a worm 8 is meshed, this worm 8 being carried on a steering shaft 9. The steering shaft is mounted in a bearing on a standard 10 and is equipped with a hand wheel 11.

Incidentally, this standard 10 is mounted on a platform 12 on` the frame. It is to be noted that the major portion of the frame is disposed in close proximity to the surface traversed in order that the hose line can be laid gently on said surface. y

Mounted in appropriate bearings, 14, on the intermediate portions of the side bars, is an axle 15, having relatively large traction wheels 16 thereon. These wheels are of the ribbed type to yinsure efficient traction. Also mounted on the axle is a gear 17, with which small pinions 18 on a motor shaft 19-mesh.

VThe motor is designated at 20, and suitably supported on one of the frame bars.

The reference character 2l designates gen'- erally a reel upon which a sectional hose 22 is wound. The reel is provided with a gear 23 in mesh with a pinion 24 carried by a small motor 25 on the opposite frame bar. This motor is of the reversible type so that the i'eel can be wound vto discharge the hose or to wind the hose thereon.

The reference character 26 designates a power supply reel, on which a power conducting cable 26 is wound. This power reel is also electrically motor driven. The cable extends back through the heading in an obvious manner, and-is connected with a suitable source of power in one of the main headings of the mine, or to a power truck.

Located between the axle 15 and the reel 26 and suitablysupported on the platform is a double-acting suction pump -27 operated through the medium of an appropriate motor 28. The pump 27 is provided with hose coupling 27 to facilitate the attachment thereto of the hose 22. In this connection, it is to be stated that one or more sections of the hose can be removed from the reel andA attached to the pump for removing water from workings in the base of the coal block.

At 29 we have designated la controller box and at 30 a seat for the operator, which is located directly behind the steering wheel 11.

' ,From the foregoing description and drawings it will be seen that we-have/evolved and produced an exceptionally simple, inexpensive, .a-nd eiicient truck for carrying a sectional hose such as can be conveniently used.

in coal mining systems of the `,class described for removing water from pockets and discharging it into existing pumps.

The truck can be easilyadvanced or retreated, to first lay the hose line, and to then rewind it on the reel. A single truck of this character will suice in a relatively large mine since it can be movedabout in the various headings to relieve, undesirable water accumulations( The pump is constructed to accommodate the hose sections and to operate eiciently. By providing a self-propelled easily steerable vehicle of this character, and by equipping 'Y 5 it with appropriate traction means, 1t is believed that we have produced a characteristic vehicle for mine operations, such as will aid considerably the Working conditions, and obviate Ventirely the necessity Y of laying pipe v lines in temporaryheadings.

Having thus described our invention, whatV -we claim as new is 1 y l. A pump truck foruse in coal mines comprising a substantially U-shaped frame, its connecting portions being offset upwardly and whose bar portions are disposed in spaced parallelism andadaptedfto occupy a plane close to the surface of the earth, a single'guide and steering wheel mountedupon the up-Y wardly offset portion, a pair of traction wheels mounted upon the intermediate portion of said guide bars, an electric motor carried by Vone of said bar portions having suitable drive connections with said wheel, bearing on the respective bar portions adjacent their outer extremities, a reel Vmounted for rotation in said bearings, a sectional hose mounted on said reel, an electric motor carried by the other of said bar portions and having so'suitable drive connections with said reel, a platform carried -by the side bars and located between said upwardly oifset portions and said Vtraction wheels, said platform being adapted to accommodatethe driver, and a double-acting motor .driven pump on said platform provided with hose couplingsv for `operable connection withthe said sectional hose on said reel.

2. A pump truck for; use in coal mines com- 40 prising a substantially U-shaped frame, the longitudinally extending side members of the frame adjacent the bight end of the same beingv offset to extend upwardly and forwardly whereby the bight of said U-shaped frame i isvdisposed above the plane of the side bars ofthe frame, a single guide and steering wheel mounted on the bight portion of said frame, a pair of traction wheels mounted upon the intermediate portion of said guide bars,

an electric motor carried by yone of'saidbarY portions and having suitable'driv'e connections with the'adj acent .traction wheel, a hose reel rotatably mountedbetween the free ends of said side bars, a platform supported on said side bars adjacent the offset portions of said side bars, `a reel rotatably supported on s'aidplatform, said reel adapted to have a power cable wound thereon, and alsuction pump supported on said platform adjacent v said last mentioned reel.

In testimony whereof we Vaflix our signatures.

' WILLIAM H. COBURN. Y

Y .CHARLES KIERNAN. 

